{
  "overall": {
    "MAE": 3.051445960998535,
    "RMSE": 3.8110615252230766,
    "R2": 0.8328959345817566,
    "n_test": 8773
  },
  "error_by_daypart": {
    "afternoon": {
      "mean": 3.029002857208252,
      "count": 1140
    },
    "dinner": {
      "mean": 3.2422558979920066,
      "count": 4626
    },
    "late_night": {
      "mean": 2.667243360986515,
      "count": 980
    },
    "lunch": {
      "mean": 3.284925214598112,
      "count": 856
    },
    "morning": {
      "mean": 2.470369732349373,
      "count": 1171
    }
  },
  "error_by_order_type": {
    "Buffet": {
      "mean": 2.990262612166812,
      "count": 2178
    },
    "Drinks": {
      "mean": 3.0578388362849522,
      "count": 2180
    },
    "Meal": {
      "mean": 3.103891093408856,
      "count": 2206
    },
    "Snack": {
      "mean": 3.053088316392877,
      "count": 2209
    }
  },
  "best_model": "XGBoost"
}